Optimizing the Differential Pulse Anodic Stripping Voltammetry Method With a Hanging Mercury Electrode for Thallium (I) Determination in the Presence of Lead (Ii) and Copper (Ii) for Application in Contaminated Soils

Cruz-Hernández, Yusniel; Villalobos, Mario; González-Chávez, José Luz; Martínez-Villegas, Nadia

doi:10.20937/rica.2019.35.02.18

Cited by 7 publications

(2 citation statements)

References 32 publications

(46 reference statements)

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“…Cruz‐Hernández et al. [30] indicated that the amount of thallium in the soil can range from 0.05 μg g −1 to 3.2 μg g −1 , while Łukaszewski and Zembrzuski [31] estimated the thallium content in soil samples at the level from 0.1 μg g −1 to 0.56 μg g −1 . In this study, the obtained thallium(I) value of…”

Section: Discussionmentioning

confidence: 99%

New Electrode Material GCE/AgNPs‐LS/Hg Based on Nanosilver Produced with the Use of Biopolymers

Konował

Modrzejewska‐Sikorska

Karbowska

2021

Electroanalysis

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A method of producing nanosilver by using lignosulfonic acid derivative and a new method of the obtained AgNPs‐LS electrode material for developing a chemically modified GCE/AgNPs‐LS/Hg electrode is presented. The data demonstrate that the modified electrode shows enhanced performance in determining Tl+ ions in comparison to unmodified electrode GCE. The stripping anodic peak current of thallium characterized in linearity over its concentration range from 1.22 ⋅ 10−8 to 1.15 ⋅ 10−7 mol dm−3, with detection limit 4.6 ⋅ 10−9 mol dm−3. It is assumed that the novel AgNPs‐LS/Hg2+ complex is suitable for preparing functionalized nanostructured material and can be used as an electrochemical sensing platform for heavy metals.

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Section: Discussionmentioning

confidence: 99%

New Electrode Material GCE/AgNPs‐LS/Hg Based on Nanosilver Produced with the Use of Biopolymers

Konował

Modrzejewska‐Sikorska

Karbowska

2021

Electroanalysis

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“…Previously, an electrochemical technique for heavy metal detection was developed using a hanging mercury drop electrode (HMDE) 87 or a thin film mercury electrode 88 . However, mercury is environmentally toxic, and mercury poisoning causes prominent nervous system effects 89 .…”

Section: Introductionmentioning

confidence: 99%

Development of portable electrochemical sensors for determination of heavy metals, nitrogen oxides and thiocyanate ion

Pungjunun

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This dissertation focused on the development of portable electrochemical sensors using the paper-based analytical device (ePAD) for the determination of the important compounds/biomarkers in various applications. Considering the target applications, this dissertation can be divided into three main parts including food safety application, environmental analysis and clinical application, respectively. In the first part, two sub-sections relating to the detection of heavy metals contaminated in food will be discussed. For the first sub-section, an ePAD coupled with a boron-doped diamond electrode was developed for the determination of total arsenic. The device was performed using the origami paper device for the preparation of gold nanoparticle-modified boron-doped diamond electrodes and the measurement of arsenic (III) using anodic stripping voltammetry on a single device. For the second sub-section, an ePAD coupled with a portable potentiostat was demonstrated for the simultaneous determination of tin and lead using a bismuth nanoparticle-modified screen-printed graphene electrode as working electrode. In the second part, an ePAD was engineered for NOx gas determination as a model for environmental analysis. The functionality of the developed platform was enhanced by integrating the gas absorber and copper nanoparticle-modified screen-printed graphene electrode within the same device for selective capturing. This novel gas sensing device could be applied to determine NOx gas in various gaseous samples, such as air and exhaust gases from cars with high accuracy and reliability. Lastly, an ePAD coupled with colorimetric detection was demonstrated for the biological sensing of salivary thiocyanate. Here, the microcapillary grooves fabricated on a paper device functioned as a microcapillary pump to facilitate the viscous salivary transportation along the microfluidic channel without requiring for sample pretreatment steps/bulky instrumentations. All in all, these ePAD formats exhibited good performances for the practical analysis and allowed for further development of an advanced platform.

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Nanocomposite of ZIF-67/reduced graphene oxide as sensing element for voltammetric detection of silver(I) ion: optimizing operational conditions by half-fraction central composite design

Yaghoubi,

Zanganeh,

Mokhtarian

et al. 2024

Monatsh Chem

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Optimizing the Differential Pulse Anodic Stripping Voltammetry Method With a Hanging Mercury Electrode for Thallium (I) Determination in the Presence of Lead (Ii) and Copper (Ii) for Application in Contaminated Soils

Abstract: Optimizacion del método voltamperómetrico de redisolución anódica de pulso diferencial con un electrodo colgante de mercurio para la determinación de talio [I] en presencia de plomo [II] y de cobre [II] para su aplicación en suelos contaminados)

Cited by 7 publications

References 32 publications

New Electrode Material GCE/AgNPs‐LS/Hg Based on Nanosilver Produced with the Use of Biopolymers

New Electrode Material GCE/AgNPs‐LS/Hg Based on Nanosilver Produced with the Use of Biopolymers

Development of portable electrochemical sensors for determination of heavy metals, nitrogen oxides and thiocyanate ion

Nanocomposite of ZIF-67/reduced graphene oxide as sensing element for voltammetric detection of silver(I) ion: optimizing operational conditions by half-fraction central composite design

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